Results 61 to 70 of about 10,355 (259)

Geophysical Impacts and Spectroscopic Identification of a Hydrous Iron Sulfate on Icy Worlds

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Over geologic time‐scales, large volumes of exogenic sulfur ions from Io's plasma torus have been supplied to the surface of Europa and Ganymede, which, combined with recent interpretations of orbiter images, dynamical modeling, and surface‐subsurface exchange, suggests further sulfur transport into the interior of the icy worlds.
Olivia S. Pardo, William R. Palfey, Zhenxian Liu, William A. Goddard III, George R. Rossman, Jennifer M. Jackson   +5 more
wiley   +1 more source

Cassini UVIS Observations of the Enceladus Auroral Footprint on Saturn in 2017

The Planetary Science Journal
Ultraviolet Imaging Spectrograph (UVIS) observations show the Enceladus auroral footprint on Saturn on 2017 September 14, near the end of the Cassini mission.
Wayne R. Pryor, Fabiola P. Magalhães, Laurent Lamy, Renée Prangé, Larry W. Esposito, Jacques Gustin, Abigail M. Rymer, Ali H. Sulaiman   +7 more
doaj   +1 more source

Comparing Jupiter and Saturn: dimensionless input rates from plasma sources within the magnetosphere [PDF]

Annales Geophysicae, 2008
The quantitative significance for a planetary magnetosphere of plasma sources associated with a moon of the planet can be assessed only by expressing the plasma mass input rate in dimensionless form, as the ratio of the actual mass input to some ...
V. M. Vasyliūnas
doaj   +1 more source

Blocks Size Frequency Distribution in the Enceladus Tiger Stripes Area: Implications on Their Formative Processes

Universe, 2021
We study the size frequency distribution of the blocks located in the deeply fractured, geologically active Enceladus South Polar Terrain with the aim to suggest their formative mechanisms.
Maurizio Pajola, Alice Lucchetti, Lara Senter, Gabriele Cremonese   +3 more
doaj   +1 more source

Tidal pattern instabilities on multi-moon planets [PDF]

, 2007
The equilibrium tide-generating forces in the lunar orbital plane of a planet of radius R are calculated for the case of N moons of mass M_i orbiting the planet at instantaneous polar coordinates (D_i, \alpha_i).
Furno, Joanna, Kuehn, Kerry
core   +2 more sources

Mineral Weathering Experiments for Terrestrial Planetary Analogs in a Continuous‐Flow Reactor

Geofluids, Volume 2026, Issue 1, 2026.
Understanding the groundwater environments for ancient Mars and other terrestrial bodies is of great interest for evaluating their habitability. Here, we experimentally tested simulated aqueous alterations of two Mars simulants (variants of MGS‐1) using a continuous‐flow packed bed reactor, reacting with three ionic simulated groundwater analog ...
Jessica M. Weber, Eduardo Martinez, Rachel Y. Sheppard, Laura E. Rodriguez, Aaron Celestian, Bronwyn L. Teece, Laura M. Barge, Pramita Mishra   +7 more
wiley   +1 more source

Seasonally Dependent Formation of Sulfates in the Basque Lakes, British Columbia, as Analogous to “Cold and Wet” and “Warm and Wet” Mars

Earth and Space Science, Volume 12, Issue 12, December 2025.
Abstract Saline lakes are expected to have been extensively present on ancient Mars, particularly as the planet dried or cooled. Such lakes likely deposited sulfate salts, as these salts have been widely identified from orbital and in situ Mars data. However, the relationship between martian sulfates and the environmental conditions that formed them ...
Emmy B. Hughes, Jacob J. Buffo, Frances Rivera‐Hernández, James J. Wray, Andrew Fleming, Alexandra Pontefract, Kennda Lynch   +6 more
wiley   +1 more source

Geysers' Dust Dynamics Inside the Hill Sphere of Enceladus

Geophysical Research Letters
In this work, we study the trajectories of the dust particles ejected in the geysers of the moon Enceladus, inside its Hill sphere, where its gravitational influence dominates. Our goal is to determine the properties of the particles that escape from the
Alberto Flandes, Pedro Elías Mirón‐Enríquez, Alma Karen Ramírez‐Cabañas   +2 more
doaj   +1 more source

Is Enceladus' plume tidally controlled?

Geophysical Research Letters, 2008
Explanations for the plume of gas, water vapor and ice particles jetting from rifts in Enceladus' south polar region include boiling of liquid water and dissociation of clathrate hydrates.
I. Halevy, S. T. Stewart
doaj   +1 more source

Contamination analysis of Arctic ice samples as planetary field analogs and implications for future life-detection missions to Europa and Enceladus

Scientific Reports, 2022
Missions to detect extraterrestrial life are being designed to visit Europa and Enceladus in the next decades. The contact between the mission payload and the habitable subsurface of these satellites involves significant risk of forward contamination ...
Lígia F. Coelho, Marie-Amélie Blais, Alex Matveev, Tina Keller-Costa, Warwick F. Vincent, Rodrigo Costa, Zita Martins, João Canário   +7 more
doaj   +1 more source